It is a pity that Nick Herbert MP (Letters, 6 April), shadow secretary of state for environment, food and rural affairs, and from a Sussex constituency, has not mastered his brief on the South Downs national park. The 22,000-seater community stadium is being built on land that is outside the proposed boundary of the national park. It is in fact on a piece of land bounded on three sides by roads, with a university campus on the fourth side. It is not on the Downs.Cllr Les HamiltonLab, Brighton & Hove City Council

Sam Wollaston is wrong to call Sir Alan Sugar's use of language laziness: it's dialect (G2, 2 April). Generations of perfectly able schoolkids have been short-changed by an education system that requires them - without specific training - to express themselves in the non-native speech forms of standard English, or else be labelled thick and lazy. I'm no expert on grammar, but it's perfectly possible that Sugar's verbal system systematically requires "doesn't" after "that", or even just that here he is operating along a cline of more or less standard English. Either way, it ain't lazy.Dr Mark J JonesTemporary lecturer in phonetics, City University, London

I always thought that drawing attention to the subject you're trying to avoid was usually considered a bit of an own goal (Report, 6 April). Well Sainsbury's latest renaming is a cracker. To avoid negative connotations by changing pollack to colin but to then use Pollock-inspired packaging is particularly dumb. The "celebrity" designer really is an idea long past its sell-by date.James AlexanderLondon

The real scandal of Jacqui Smith's 88p bath plug (Comment, 6 April) is that a member of a government committed to reducing greenhouse gas emissions by 80% should still be wasting water and energy having a bath instead of using the more efficient shower.Graham DaveyBristol

Gaynor Lewis (Letters, 4 April) could link her visits to the Bread and Salt Museums with one to the Egg Museum in Soyans, in the Drôme valley, France.Robert DavisLondon